I don't believe Snee's position is that they were backward or ill informed either but that their reaction to US intervention was one of a people who had become accustomed to an insular view of foreign intervention. They subsequently embraced an aspect of politics that was popular at the time - Empire.
One might view the US role as liberating or one might consider it an ongoing process of securing influence in the region (or indeed a bit of both).
I think you'll find if you go and look that history shows they were expansionist (Empire builders) before their enforced isolation. So they couldn't possibly have embraced a political aspect that they had been living by for centuries before their isolation. Their Empirical ambitions had nothing to do with western influence, they merely returned to their militaristic expansionist ways.